◎ 题干
None of them have regular and        source of income and forced to live below poverty line.
A.safe B.legal C.secure D.diverse
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“None of them have regular andsource of income and forced to live below poverty line.A.safeB.legalC.secureD.diverse…”主要考查了你对  【可数名词及其单复数】【集合名词】【名词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。